Paper-manufacturing machine



Feb. 28, 1928.

J. W. BRASSINGTON PAPER MANUFACTURING MACHINE Original Filed May 16,1922 3 Sheets sheet l Wl-H .nulllimlullll.

vironNEv mvENToe dorm; W. BrussmoToN.

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Feb. 28, 1928.-

J. W. BRASSINGTON PAPER MANUFACTURING MACHINE 3 Sheets-Sheet 2 OriginalFiled May 16. 1922 lNvEN-roe Jol-N W. Bussma'foN.

ATTORNEY.

A Feb..28, 1928. Y 1,660,643

J. W. BRASSINGTON PAPER MANUFACTURING MACHINE Original Filed May l5,1922 5 Sheets-Sheet 3 JOHN W. BzAsslNsToN.

ATTORNEY.

Patentecl Feb. 28, 1928.

UNITED STATES atraen sereni oralesn JOHN W. BRASSINGTON, PORT ARTHUR,ONTARIG, CANADA, ASSIGNOB TO THE l PAPER AND TEXTILE MACHINERY COMPANY,0F SANDUSKY, OHIO, A COR- PORATION OF DI-IIO.

PAPER-MANUFACTURNG MACHINE.

Application filed May 16, 1922, Serial No. 561,447. Renewed May 20,1927.

lhis invention has relation to certain new and useful improvements inpaper manufac turing machines and has particular reference to the classof paper manufacturing machines which gather the pulp from a vat onto amovable endless member operating around a suction roll immersed in thevat.

vAn object of the invention resides in the provision of a papermanufacturing machine in which the paper pulp is constantly agitatedwithin. the vat and gathered upon the movable endless member rotatingwith the cylinder ot the suction roll while the water is drawn throughthe movable endless member into the cylinder of the suction roll anddischarged at a suitable point outside of the vat.

Another object of the invention resides in` the provision ot a papermanufacturing' machine, ot the character stated. in which the suctionroll may be adjusted to vary the quantity of the pulp fibres drawnagainst the movable endless member. while provision is also made forvarying the speed ot rotation of the suction roll cylinder and traveloit the movable endless member through the vat, thereby making it.Apossible to regulate the quality and thickness of the sheets formed onthe movable endless member.

`A further object of the invention resides in the provision of a papermaking machine of the character stated. in. which the suction roll maybe positioned above the agitatinfr members within the vat and thesuction roll adjusted or rotated a limited distance to properly positionthe suction sutace thereot with respect to the aqitatine members andthereby vary the rate of attraction of the libres from the paper makingstock in the vat to the. 'tace ot the movable endless member which maybe in the form of a screen belt'oi` fine mesh or a felt belt.

The invention has for a further object the provision of a paper makina"machine of the character stated in which the principles of the presentinvention may be incorporated in connection with suction rolls ofvarious types. y

A still further object resides in the provision of an improvedconstruction and ar'- rang-ement of gathering Vmeclmnismy which may beespecially adapted to the class of paper making mechines iii which thepaper is made on the cylinder, which at present gathers the libres insuchy a manner :trom the quiet stock that the libres all run in the.direction of revolution ot the cylinder, there-- by producinga paperwhich is weaker in a transverse direction than its longitudinal di,-rection. Such a machine having' the ele ments of the present inventionincorporated will operate to overcome this objection by agita-ting thestock and gathering thefibres upon the movable endless member of theimproved mechanism with the 'bres crossing one another and running indifferent directions, thereby producing a paper which is strongV anddurable and which will stand transverse strain as well as a longitudinalstrain, owinga to the crossing and interlocking` of the fibres With theforegoingV and otherobjects in view, as will appear as the descriptionproceeds, the invention consists in the'novely construction. combinationand arrangement ot (fo-operating elements as hereinaftermorespecifically set forth, claimed and shown in the accompanying drawings'forminga part of the present application in which Figure l isa verticalsectionthrough the vat and parts carried therein constructed andarranged in accordance with the present invention. l i

Figure 2 is a side elevation of the vat and the parts carried thereby.

'Figure 3 is a transverse vertical section. substantially on the planeof line 3 3 of Figure 1, looking` in the ydirection indicated by thearrows.

Referrine: more in detail to the drawings in which similar referencecharacters desire nate correspondingr parts throughout the severalviews, 3 indicates in general the vat of a conventional form of papermaking machine, while 4 indicates the suction boxes, over which themovable endless member travels with the paper pulp gathered from the vat3. This vat 3 has near one side or end portion. the depending1r baiileplate 6 and the upstandinp baille plate 7 around which the stock mustpass lin entering the vat 3.

Positioned in the main vportion of the vat 3 are the agitatingr members8 which maybe termed agitatine; fans and are carried upon shafts 9extending upwardly through the bottom ot the vat 3. The shafts 9 carryworm wheels l() or the like on their lower ends and are engaged bydriving worms or gears 'l1 on the driving shafts 12. It is thereforeevident that rotation of the shafts 9 will cause operation of theagitating members 8 which should be rigidly mounted thereon. A numberlof these agitating members 8 will serve to thoroughly agitate the stockwithin the vat 3 and to keep the Hbres of the stock constantly inviolent motion, moving in various ydirections in respect to one anotherwithin the vat 3.

The movable endless member 5 passes over suitable guide rollers 13 andone end of the movable endless member 5 passes around the rotatablecylinder 14 of the sue tion roll mounted transverselyfof the vat 3,above the agitating members 8. The cylinder 14 should be perforated forat least the greater portion of its length and the movable endlessmember 5 is preferably constructed of a fine wire mesh. This suctionroll also includes a suction box 15 within the cylinder 14 and whichshould be held stationary during operation of the machine. The suctionbox 15 may be of the construction shown or of any other suitable andpreferred construction but should be mounted so that it may be adjustedor turned for a limited distance to properly position the suetionsurface thereof with respect to the agit-ating members 8. Thisadjustment may` be readily obtained by rotating the suction box by hand,or otherwise, to the required extent. The dotted lines in Figure 3indicate such adjustment. The suction box is shown in the drawings ashaving an open side 16 for the purpose of regulating the widths of thepaper, as will be later understood. The suction box 15 has end members17 rigid with the main portion (by welding or the like when formedseparate from the main portion thereof, as shown in the drawing), andwhich end members 17 extend through the end of the cylinder and formbearings upon which the cylinder 14 may row tate. vThe suction box ends17 are mounted in bearings 18 at the upper ends of the supporting'members 19 positioned on opposite sides of the vat 3. Set screws Q maybe einployed in the bearings 18 to secure the suction box ends 17 inposition and prevent rotation of the suction box 15'during` operation ofthe machine. The adjusting screw 21 is rotatably mounted through thesucA tion box ends 17 as shown in the drawings and may be controlled bya hand wheel i2 Leconte the adjusting screw 21 upon rotation of thelatter. lt is, therefore, evident that by proper operation of the screw21, the member 23 may be moved longitudinally in the cyl.- inder 14 topermit the formation of either a wide or narrow sheet as may he desired.Longitudinal movement of the screw 21 :is prevented by the annularcollar 21 thereof, working in the cap 21) carried by the end member 17through which the screw 21 is extended.

Projecting from the cylindrical or main portion of the suction box 15 oneither side of the open side 16. are the shoe guide walls 28 extendingin parallel relation and carrying therein the shoes 29. ri`he walls Q8should be of proper construction to permit shoes 29 to be carriedtherein in such a manner as to resiliently contact with the inner faceof the cylinder 14. A suction pipe 51- connects with one end of thesuction box 15 and extends outwardly of the vat 3 for connection withsuitable means, not shown, for causing a suction through the portions ofthe movable endless member and the cylinder 14 opposite the .slot 16 andoutwardly through the suction pipe 31, thereby causing the agitatedfibres in the vat 3 to be drawn against the outer 'tace of the movablemember 5 as the latter passes through the vat 3. Attention may be calledto the fact that a gear wheel. may be mountedon the cylinder 14. as.shown in Figure 2, to provide for rotation ot' the cylinder 14 bysuitable driving means. not shown. The member 5, cylinder 14 andagitating members 8 are in constant motion during the operation of themachine. The sheet produced by gathering of the agitated fibres on themember 5. should be of uniform thickness throughout its length andwidth. It is also evident that the suction box may be mounted forlimited rotation so that it may be turned to any position between thatshown by full lines and the position indicated by dotted lines in Figure3 for the purpose of varying the position of the shoes 29 with respectto the agitating members 8 and thereby providing for a faster gatheringand closer interlocking of the fibres to produce the sheet on the member5 when the suction box 15 is turned towards the agitating members. Theresult will be the reverse when the suction box 15 is turned at an angleto the agitating` members. It is therefore apparent that the characterof the sheet produced may be varied as desired.

It is believed that the complete construction and operation may now beapparent from the foregoing paragraphs taken in connection with thedrawings without further detailed description. lt may be briefly stated,however. that when the paper making machine is constructed in accordancewith this invention, the character ot the product, as well as the widthand thickness ot'` the sheet, may be readily controlled by a simpleadjustment of the parts and regulation of rotation otl the rotatablemembers, as previousljV mentioned. f

YVhile the prcierred embodiment ot the invention has been disclosed, itto be understood that minor changes may be resorted to Within the scopeot what is claimed without departing from the spirit of the inven tion.

lVhat I claim as new is:

l. A paper making machine including a vat, a movable endlessy memberpassing through said vat, means tor constantly agi tating the contentsot the vat, means for causing an attraction oit the libres in the vatcontents to one tace of the movable endless member passing through saidvat, the libres being gathered. in sheet :form on said movable endlessmember, means tor regulating the quantity olf ibres attracted to saidmovable endless member, and means within a suction roll in the iat toregulate the width et the sheet formed.

2. A paper making machine con'iprising a fibre containing vat,nagitating members mountedy for operation in said vat, a suctionrollmounted above said agitating members, said suction roll including anadjustable suction box adapted to be held in adjusted position duringoperation ot' the machine, a perforated cylindersurrounding said suctionboX and adapted to rotate around the same during the operation of themachine and a movable endless member extending around. said cylinder andadapted to move with the same, said suction box being construe-ted toprovide for a suction inwardly through said movable endless member andthrough said cylinder to attract the agitated libres in the vat to theouter 'ace of the said movable endless member in sheet form, saidsuction box being adapted to be adjusted to regulate the quantity otlibres attracted to said movable endless member and the density of thelibres gathered thereon.

3. A paper making machine comprising a libre containing vat, agitatingmembers mounted ttor operation .in said vat, a suction roll mountedabove said agitating members, said suction roll including an adjustablesuction box adapted to be held in adjusted position duringoperation oitthe machine, a perforated cylinder surrounding said suction boX andadapted to rotate around the same during the operation oit the machine,a movable endless member extending around said cylinder and adapted tomove with the same, said suction box being constructed to provide 'for asuction inwardly through .said movable endless member and through saidcylinder to attract the agitated fibres in the vat to the outer tace ofthe said movable endless member in sheet form, said suction box beingadapted to be adjusted to regnlate the quantity of fibres attracted .tosaid movable endless member and the density ot the libres gatheredthereon vand means to regulate the Width ot the sheet termed on saidmovable endless member.

Ll. A paper making machine including a vat, an endless .libre gatheringineniber passing through said vat, means tor agitating libres within`said vat, a rotatable men'iber partly enclosed by a. portion of theendless member passing through the said vat and means extending throughvthe rotatable niember to provide for a suction through the endlessmember anda corresponding portion oit the rotatable member to attractthe agitated fibres t0 the outer surface ot the said end-- less memberpassing through said vat and means Within a suction roll in the vat torregulating the Width of the sheet termed.

5. A paper making machine including a libre containing vat, a suctionroll mounted in said vat, said suction rollv including a cyl.- inder anda suction box opening on a portion Lof the tace ot said cylinder, libreagita'ting members mounted tor operation in said vat below thelongitudinal centre ot said suction roll and a gathering memberoperating around said cylinder to gather libres from the vat in sheetform, said agitating'members serving to cause rapid movement ot thefibres in various directions toward said suction roll, said suction rollbeing adapted to be adjusted to turn the suction boi: to va rionspositions with respeetto said agitating members for varying the quantityof bres gathered on said gathering member.

(i. Ar paper-making machine comprising, in combination, a rotatingperforate cylinder; a stationary suction box coacting with the interiorsurface of said cylinder to provide a vacuum chamber at the lower sideoit' the cylinder; a stock containing vat in which the portion of thecylinder traversing said suction-box is submerged; and an endlessstrainer medium passing around said cylinder on which a wet sheet isformed from said stock.

7. A paper-making machine having, in combination, a vat Ytor the pulpsolution; an endless strainer medium traveling into and out from thevat; a rotating pertorate cylinder in the vat around which said memberpasses, the under side of which cylinder is submerged in the solution inthe vat; and a suction-box in said cylinder arranged to draw Water ofthe solution through the traveling medium on a submerged area of thecylinder, thereby continuously gathering on the traveling medium adeposit ot pulp libres in sheet form.

8. A paper-making machine having, in combination, a vat for the pulpsolution; an endless strainer medium traveling into and out from thevat; a rotating perforate cylinder in the vat around which said memberpasses, the under side of which cylinder is submerged in the solution inthe vat; a suction-box in the cylinder arranged to draw Water ot' thesolution through Athe traveling medium on a submerged area ot thecylinder, thereby continuously gathering on the traveling medium adeposit ot pulp fibres in sheet form; and means beyond the cylindertraversed by the off-bearing run of said endless medium for subjectingsaid medium and pulp deposited thereon to suction action for removingWater from the pulp deposit.

9. A paper-making machine having, in combination` a vat tor rthe pulpsolution; an endless strainer medium traveling into and vout from thevat; a rotating perforate Cylinder in the vat around which said memberpasses, the under side of which cylinder is submerged in the solution inthe vat; and a suction-box in said cylinder arranged to draw Water ot'the solution through the traveling medium on a submerged area ot thecylinder, thereby continuously gathering on the traveling medium adeposit ot pulp iibres in sheet form; said suction-box being angularlyadjustable in the Cylinder and having means for securing it in diterentpositions relative to the level ot the pulp solution.

l0. A paper-making machine comprising a vat and means embodying asuction-roll for continuously gathering a deposit of pulp bres in sheetform from the solution in the vat, said suction-roll having an anwLeeoea gularly adjustable suction-box to permit shitting the suctionarea of the roll in relation to the level of the liquid in the vat.

ll. A paper-making machine having, in combination, a vat for the pulpsolution; an endless strainer medium traveling into and out from thevat; means operating in the vat for agitating the pulp solution; andmeans in the vat cooperating with said medium for gathering a deposit otpulp libres in sheet form on said medium, said means adjustable tooperate at different positions relative to said agitating means.

l2. A paper-making machine: having, in combination, a vat for the pulpSolution; an endless strainer medium traveling into and out from thevat; means operating in the vat tor agitating the pulp solution; andmeans comprising a suction-roll having a submerged suction areatraversedby said medium for gathering thereon a deposit of pulp fibresin sheet form, said suction-roll constructed to permit adjusting itssuction area to different positions in relation to the agitating means.

13. A paper-making machine having, in combination, a vat; means foragitating the solution in the vat; and means embodying a suction-rollfor gathering a deposit of iibres in sheet form from the agitatedsolution, said suction-roll having an angularly vadjustable suction-boxto permit varying the position of the suction area in the solution.

In testimony whereof I aiiix my signature.

JOHN W. BRASSINGTON.

